CN113064293A

CN113064293A - Display structure

Info

Publication number: CN113064293A
Application number: CN202110195342.3A
Authority: CN
Inventors: 曹俊威
Original assignee: Shenzhen Hadbest Electronics Co ltd
Current assignee: Shenzhen Hadbest Electronics Co ltd
Priority date: 2021-02-20
Filing date: 2021-02-20
Publication date: 2021-07-02
Anticipated expiration: 2041-02-20
Also published as: CN113064293B

Abstract

The application relates to the field of liquid crystal display screens, in particular to a display structure, which comprises a lower frame and a backlight module, wherein the lower frame is integrally formed by die casting; the lower frame is hollow and confined framework, it corresponds display module assembly one side and is equipped with the opening, the lower frame is the echelonment setting with the adjacent lateral wall of opening, and be close to open-ended one deck ladder and be the fixed slot, the fixed slot width is greater than and keeps away from open-ended ladder width, be equipped with the center of returning the font in the lower frame, backlight unit is located the fixed slot and keeps away from open-ended one side, the fixed slot is located to the center, and the center extends to the backlight unit top by its four sides to the middle part, center middle part formation area is less than the printing opacity mouth of the area of the side that backlight unit is close to the. The display device has the effect of simplifying the structure of the display.

Description

Display structure

Technical Field

The application relates to the field of liquid crystal display screens, in particular to a display structure.

Background

With the development of the automobile industry, a display screen is often preset in an automobile for an operator to control facilities in the automobile, the trend of the display screen in the automobile is large screen and multi-screen, the size of the screen is also developed in the long direction, the application of a bar screen is wider and wider, or a dual screen or a triple screen is adopted, and the installation, protection and manufacturing cost of the display screen are all problems in the industry.

The common manufacturing method of the display is to assemble the touch screen cover plate and the TFT screen of the display screen on the backlight module, and then to install the display module and the related driving circuit on the rear case by using a high-strength rear case.

Disclosure of Invention

In order to simplify the display structure, the application provides a display structure.

The application provides a display structure adopts following technical scheme:

a display structure comprises a lower frame and a backlight module, wherein the lower frame is integrally formed by die casting; the utility model discloses a backlight module, including lower frame, opening, backlight module, fixed slot, the lower frame is cavity and confined framework, and its one side that corresponds the display module assembly is equipped with the opening, the lower frame is the echelonment setting with the adjacent lateral wall of opening, and is close to open-ended one deck ladder and be the fixed slot, the fixed slot width is greater than and keeps away from open-ended ladder width, be equipped with the center of returning the font in the lower frame, backlight module is located the fixed slot and keeps away from open-ended one side, the fixed slot is located to the center, and the center extends to the backlight module top by its four sides to the middle part, center middle part formation area is less than the light.

Through adopting above-mentioned technical scheme, the integrative die-casting of lower frame is fashioned, and is the echelonment structure, and the center joint is in the fixed slot, with the spacing backlight unit of lower frame cooperation of echelonment structure, and the center is simple structure's the font of returning, and the center is equipped with light inlet, and light inlet's area is less than the side area that backlight unit is close to the center, still plays the effect that reduces the light leak, and this scheme has the effect of the structure of simplifying the display.

Preferably, backlight unit includes reflectance coating, light guide plate and lamp strip, the lower frame is located the ladder of fixed slot downside and forms the mounting groove, the mounting groove tank bottom is located to the reflectance coating, the reflectance coating top is located to the light guide plate, the position of mounting groove wherein one side lateral wall and corresponding light guide plate is located to the lamp strip, just trilateral the portion of bending that forms of reflectance coating, the portion cladding of bending is in the light guide plate and be close to adjacent, relative three sides in lamp strip one side.

Through adopting above-mentioned technical scheme, the side of reflective film parcel light guide plate only leaves one side and supplies the lamp strip to advance light, makes the light leak condition of light guide plate less, and the light of lamp strip gathers more in the light guide plate.

Preferably, one side integrated into one piece that the light guide plate is close to the lamp strip has the setting element, the setting element is including connecting in light guide plate connecting portion, connecting portion set up reflective film one side towards the light guide plate and extend, the butt portion that the light guide plate one side was kept away from to the inboard formation butt that buckles of light guide plate is stretched out to connecting portion's one end to the light guide plate, the tank bottom of mounting groove is equipped with the constant head tank with butt portion joint.

Through adopting above-mentioned technical scheme, butt portion and the spacing light guide plate of connecting portion cooperation and reflectance coating, the constant head tank has location connecting portion to be convenient for location joint light guide plate.

Preferably, be equipped with the elastic layer between light guide plate and the portion of bending, it is equipped with the location soft piece to bend between the portion one side of keeping away from the light guide plate and the mounting groove lateral wall, be equipped with the elastic component in the soft piece of location, the mounting groove corresponds the lateral wall of elastic component and is equipped with the deformation hole.

Through adopting above-mentioned technical scheme, the elastic layer is compressible, is heated the inflation for the light guide plate and reserves deformation space, and the fixed light guide plate of location soft piece has the effect of restriction light guide plate deformation degree, and the deformation hole then is the space of giving location soft piece deformation, and the elastic component assistance-localization real-time soft piece replies deformation.

Preferably, the lamp strip includes the LED lamp, the LED lamp evenly sets up along lamp strip length direction, connecting portion locate between two adjacent LED lamps and gapped with the lamp strip, the constant head tank extends to one side that the light guide plate was kept away from to the lamp strip.

Through adopting above-mentioned technical scheme, connecting portion locate between the adjacent LED lamp, with LED lamp cooperation joint, have the effect of spacing fixed light guide plate.

Preferably, one side of the light guide plate close to the light bar is integrally formed with at least two positioning portions, the positioning portions protrude out of the light guide plate, the light bar further comprises an FPC (flexible printed circuit) lamp strip, the LED lamp is provided with a plurality of positioning portions along the length direction of the FPC lamp strip, the positioning portions are abutted to the FPC lamp strip, all the LED lamps are located between the two positioning portions which are farthest away from each other, and the side, abutted to the FPC lamp strip, of each positioning portion is an arc-shaped surface.

Through adopting above-mentioned technical scheme, location portion has the effect of the fixed lamp strip of joint, and location portion still has the effect of spotlight.

Preferably, the side of the lower frame, which is provided with the opening, extends to the outer side of the lower frame along the plane of the side of the lower frame to form a baffle plate for fixing the display screen, the surface of the baffle plate is spaced from the surface of the middle frame, which is close to the opening, a buffer cushion layer is arranged on one side of the middle frame, which is close to the opening, and the buffer cushion layer is positioned in the lower frame, and a buffer elastic ball is arranged in the buffer cushion layer.

Through adopting above-mentioned technical scheme, the baffle setting is convenient for fix the display screen, and the cushion layer has the effect of protection display screen, and buffering elastic ball has the effect that increases the cushion layer's buffering effect.

Preferably, the bottom of the mounting groove is provided with a plurality of bonding grooves, the bottom of each bonding groove is provided with a plurality of fixing glue, and the fixing glue is connected with the reflecting film and the lower frame.

Through adopting above-mentioned technical scheme, set up fixed sticky bonding reflectance coating in the bonding groove, have the effect that makes reflectance coating and mounting groove tank bottom laminating degree more excellent.

Preferably, the lateral wall that the inside wall of mounting groove corresponds the portion of bending is equipped with semicircular ventilative shell fragment, the one end of ventilative shell fragment is the stiff end, the other end is the expansion end, the mounting groove is equipped with the fixed slot that is used for the joint stiff end, the position that the lower frame lateral wall corresponds ventilative shell fragment is equipped with the bleeder vent, and the lower frame in the position of bleeder vent is equipped with the dust blocking piece that has elasticity and cover the bleeder vent, one side of dust blocking piece is fixed in the lower frame, relative one side activity sets up to the activity side, the expansion end of ventilative shell fragment supports and presses in the activity side of dust blocking piece.

Through adopting above-mentioned technical scheme, ventilative shell fragment and dust blocking piece cooperation make and be heated when the light guide plate and expand, ventilative shell fragment takes place deformation, will keep off the dust piece and promote to the lower frame outside, make to form ventilative space between dust blocking piece and the bleeder vent, have the radiating effect of being convenient for.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the lower frame is integrally formed in a die-casting mode and is of a stepped structure, the middle frame is clamped in the fixing groove and is matched with the lower frame of the stepped structure to limit the backlight module, the middle frame is in a shape like a Chinese character 'hui', the middle frame is provided with a light transmitting opening, the area of the light transmitting opening is smaller than the area of the side face, close to the middle frame, of the backlight module, and the effect of reducing light leakage is achieved;

2. the elastic layer can be compressed, a deformation space is reserved for the light guide plate to expand when heated, the positioning soft block fixes the light guide plate, the effect of limiting the deformation degree of the light guide plate is achieved, the deformation hole is a space for the positioning soft block to deform, and the elastic piece assists the positioning soft block to return to deform;

3. the baffle sets up, is convenient for fixed display screen, and the cushion layer has the effect of protection display screen, and buffering elasticity ball has the effect that increases the cushion layer's buffering effect.

Drawings

Fig. 1 is a schematic structural diagram of a display structure according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of B in FIG. 2;

FIG. 4 is a schematic diagram of a lower frame in an embodiment of the present application;

FIG. 5 is a schematic view of a light guide plate according to an embodiment of the present disclosure;

FIG. 6 is an enlarged view of C in FIG. 5;

fig. 7 is a schematic structural diagram of a lower frame in the second embodiment of the present application.

Description of reference numerals: 1. a lower frame; 11. an opening; 12. fixing grooves; 121. connecting grooves; 13. mounting grooves; 131. a bonding groove; 14. a deformation hole; 15. a dust-blocking sheet; 151. a movable side; 16. a breathable elastic sheet; 161. a movable end; 17. a baffle plate; 2. a display module; 3. a middle frame; 31. a cushion layer; 311. a buffering elastic ball; 4. a reflective film; 41. a bending part; 42. a light guide plate; 421. an elastic layer; 422. a connecting portion; 423. an abutting portion; 424. a positioning part; 43. a light bar; 44. positioning the soft block; 441. an elastic member; 5. an LED lamp; 51. an FPC lamp strip; 6. fixing the elastic sheet; 61. accommodating grooves; 62. a clamping groove; 63. the rubber is tensioned.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

Example one

The embodiment of the application discloses a display structure. Referring to fig. 1 and 2, the display structure includes a lower frame 1, a display module 2 and a backlight module, the lower frame 1 is a closed hollow frame structure formed by integral die casting, and an opening 11 is formed at one side of the lower frame 1.

Referring to fig. 1 and 3, the side wall of the lower frame 1 adjacent to the opening 11 forms a two-stage ladder structure, a fixing groove 12 is formed at one stage ladder close to the opening 11, an installation groove 13 is formed at one stage ladder far away from the opening 11, the backlight module is arranged in the installation groove 13, the lower frame 1 is provided with a middle frame 3 for fixing the backlight module in the fixing groove 12, and the display module 2 is arranged at one side of the middle frame 3 close to the opening 11.

Middle frame 3 plays the effect of fixed backlight unit and bearing display module assembly 2, in this embodiment, middle frame 3 is back font structure, and be the planar structure, the middle part of middle frame 3 inwards extends the light inlet that forms the area and be less than the area that backlight unit is close to the side of display module assembly 2, backlight unit's light is shone to display module assembly 2 by the light inlet, middle frame 3's structure has simple structure, the shaping degree of difficulty is little, the size is stable, the productivity is high and advantage such as with low costs, and in this embodiment, lower frame 1 adopts the metal material, good heat conduction has, the effect that heat dissipation and intensity are high.

In this embodiment, a connecting groove 121 is disposed on an inner wall of the fixing groove 12 on a side away from the opening 11, the connecting groove 121 is used for placing a double-sided adhesive tape to adhere the middle frame 3 to the fixing groove 12, and the connecting groove 121 is disposed to enable the middle frame 3 to abut against the lower frame 1, thereby facilitating heat transfer.

Referring to fig. 3 and 4, in the embodiment, the display module 2 is a display screen, and may be formed by fully attaching a TP cover plate and a TFT screen, and the backlight module includes a reflective film 4, a light guide plate 42, a light bar 43, an optical film, and the like.

The reflective film 4 covers one side of the light guide plate 42, a bent portion 41 is formed by bending the edge of three sides of the reflective film 4 to one side of the light guide plate 42, the bent portion 41 wraps the three side surfaces of the light guide plate 42, the bent portion 41 completely covers the side surface of the light guide plate 42 corresponding to the bent portion, the light bar 43 is arranged on one side, close to the light guide plate 42, of the mounting groove 13, the bent portion 41 is not covered by the light guide plate 42, the position of the light bar 43 corresponds to the position of the light guide plate 42, and the bent portion 41 reduces light leakage.

When the actual installation, reflective membrane 4 butt in the tank bottom of mounting groove 13, a plurality of bonding grooves 131 have been seted up at the tank bottom of mounting groove 13, be equipped with the fixed glue in bonding groove 131, fixed glue bonds fixed reflective membrane 4 and lower frame 1, it is specific, bonding groove 131 is the circular slot, the double faced adhesive tape of rectangle is tailor to the fixed glue adoption, the bonding face of fixed glue flushes in bonding groove 131 notch and bonds with reflective membrane 4, and the length of side of fixed glue is less than the diameter of bonding groove 131, bonding groove 131 sets up about the mid point symmetry of the side that reflective membrane 4 is close to mounting groove 13 tank bottom, when reflective membrane 4 is heated, bonding groove 131 has the space that holds the fixed glue and receive thermal deformation.

The elastic layer 421 is disposed between the light guide plate 42 and the bending portion 41, in this embodiment, the elastic layer 421 may be a silicone pad, two opposite sides of the elastic layer 421 are respectively bonded and fixed to the bending portion 41 and the light guide plate 42, when the light guide plate 42 expands due to heat, the elastic layer 421 has a space for providing the light guide plate 42 with thermal expansion, thereby protecting the light guide plate 42.

Referring to fig. 3, a positioning soft block 44 is disposed between the side of the bending portion 41 far from the light guide plate 42 and the inner side wall of the lower frame 1, the positioning soft block 44 is disposed in the mounting groove 13, the positioning soft block 44 is uniformly disposed along the length direction of the side of the bending portion 41 parallel to the opening 11, in this embodiment, the positioning soft block 44 may be made of rubber, and when the reflective film 4 and the light guide plate 42 are mounted in the lower frame 1, the positioning soft block 44 and the reflective film 4 are in interference fit, the positioning soft block 44 has compressible potential, the positioning soft block 44 further fixes the reflective film 4 and the light guide plate 42, so that the light guide plate 42 is not easy to move, and the positioning soft block 44 has elasticity, and when the light guide plate 42 is expanded by heat, the positioning soft block 44 has an effect of adapting to the expansion.

The positioning soft block 44 is internally provided with an elastic element 441, in this embodiment, the elastic element 441 is a spring, a deformation direction of the elastic element 441 is perpendicular to a side surface of the bending portion 41 close to the elastic element, a deformation hole 14 is formed in a side wall of the mounting groove 13, a position of the deformation hole 14 corresponds to a position of the elastic element 441, when the elastic element 441 is compressed, the elastic element can be partially accommodated in the deformation hole 14, the deformation hole 14 provides a space for deformation of the positioning soft block 44, the elastic element 441 reduces excessive deformation of the light guide plate 42, and has an effect of ejecting the positioning soft block 44 from the deformation hole 14 after a condition causing expansion of the light guide plate 42 disappears, and also has an effect of restoring the light guide plate 42 to an original structure.

Referring to fig. 4 and 5, a positioning member is disposed on a side of the light guide plate 42 close to the light bar 43, and the positioning member and the light guide plate 42 are integrally formed.

Referring to fig. 4 and 6, the positioning element includes a connection portion 422 connected to the light guide plate 42, the connection portion 422 is formed by extending the light guide plate 42 toward a side close to the light bar 43, the connection portion 422 extends the light guide plate 42 toward a side close to the reflective film 4, and a side of the connection portion 422 extending out of the light guide plate 42 is bent and extended to a side away from the light bar 43 to form a butting portion 423, the butting portion 423 butts against a side of the reflective film 4 away from the light guide plate 42, the reflective film 4 is limited by the butting portion 423, so that the reflective film 4 is not easily separated from the light guide plate 42, a positioning groove is formed in the bottom of the mounting groove 13, the position of the positioning groove corresponds to the position of the rear butting portion 423 installed in the lower frame 1 of the.

The lamp strip 43 comprises an FPC lamp strip 51 and LED lamps 5 uniformly arranged on the FPC lamp strip 51, a gap is reserved between the side faces of the LED lamps 5 and the light guide plate 42 close to the side faces, the FPC lamp strip 51 is adhered to the side wall of the mounting groove 13 through heat conducting glue, the length direction of the side faces, where the lamp strip 43 is arranged, of the FPC lamp strip 51 along the mounting groove 13 is parallel to the side face of the opening 11 (refer to fig. 1), the LED lamps 5 are uniformly arranged at intervals along the length direction of the FPC lamp strip 51, the abutting portion 423 is arranged between two adjacent LED lamps 5, a gap is reserved between the abutting portion 423 and the FPC lamp strip 51, the positioning groove extends to the side face, where the lamp strip 43 is arranged, of the mounting groove 13 towards the side face where the FPC lamp strip 51 is located, a gap is reserved between the connecting portion 422 and the FPC lamp.

At least two positioning portions 424 are disposed on a side surface of the light guide plate 42 close to the light bar 43, in this embodiment, two positioning portions 424 are disposed, but 3, 4, 5, etc. may be disposed according to actual needs; positioning portion 424 and light guide plate 42 integrated into one piece, and towards lamp strip 43 one side protrusion in the surface of light guide plate 42, positioning portion 424 butt in the surface of FPC lamp area 51, LED lamp 5 is located between two positioning portions 424 that linear distance is the farthest, in practical use, also can paste lighttight material in positioning portion 424's side, both sides positioning portion 424 cooperation, block the divergence of light by the both sides of LED lamp 5, have the effect of gathering together the energy of LED lamp 5.

The side surface of the positioning portion 424 abutting against the FPC tape 51 is an arc surface, so that the positioning portion 424 plays a role in positioning the light guide plate 42, and meanwhile, if the positioning portion 424 expands due to heating, the area abutting against the FPC tape 51 is smaller, thereby reducing the damage of the FPC tape 51 due to the expansion of the positioning portion 424.

Referring to fig. 3 and 4, optionally, the lower frame 1 is provided with air vents on the inner side wall of the mounting groove 13, the air vents are disposed on the inner side wall of the mounting groove 13 corresponding to the side surfaces of the bent portions 41, the positions of the air vents correspond to the positions of the light guide plate 42, the lower frame 1 is provided with elastic dust-blocking sheets 15 corresponding to the positions of the air vents, the dust-blocking sheets 15 are disposed in the air vents and cover the air vents, the specific positions are that the side edge portions of the dust-blocking sheets 15 are fixedly bonded to the inner side wall of the air vents, the side edge of the dust-blocking sheet 15 which is not fixedly bonded to the air vents is a movable side 151, the surface corresponding to the movable side 151 is a smooth arc surface, the side surface of the lower frame 1 which is located on the inner side wall of the mounting groove 13 is provided with air-permeable elastic sheets 16, the air-permeable elastic, the movable end 161 abuts against the movable side 151, the breathable elastic sheet 16 is bent towards the side where the bending portion 41 close to the breathable elastic sheet is located, and abuts against the side face of the bending portion 41 close to the breathable elastic sheet, when the bending portion 41 and the light guide plate 42 deform due to heating, the breathable elastic sheet 16 deforms, the movable end 161 abuts against the dust blocking sheet 15, the dust blocking sheet 15 deforms, a space for air flow circulation can be formed between the dust blocking sheet 15 and the side wall of the air vent, and the radiating effect is accelerated.

The position that 13 lateral walls of mounting groove correspond the stiff end is equipped with fixed slot 12, and fixed slot 12 is cylindrical groove, and the notch width of fixed slot 12 is less than the radius of fixed slot 12, and the stiff end is equipped with and has elasticity and can the joint in the rotation post of fixed slot 12, and the diameter of rotating the post equals the diameter of fixed slot 12, rotates and changes and to rotate in fixed slot 12 internal rotation.

The side that sets up opening 11 at lower frame 1 outwards extends has baffle 17, baffle 17 sets up the plane setting of opening 11 along being on a parallel with lower frame 1, baffle 17 is equipped with the double faced adhesive tape that is used for bonding display module 2 on the surface, when actual installation, can bond the TP apron on baffle 17, when center 3 places in fixed slot 12, baffle 17 sets up and has the interval between the surface of double faced adhesive tape and center 3 near the surface of opening 11, specifically, the interval can be 0.5mm-10mm, 5mm in this embodiment, be equipped with cushion 31 in center 3 near the side of opening 11, when display module 2 bonds on baffle 17, cushion 31 butt is close to center 3 in display module 2's side, cushion 31 plays to reduce the pressure between center 3 and the display module 2, the effect that has protection display module 2.

Be equipped with a plurality of buffering elastic balls 311 in buffer layer 31, in this embodiment, buffering elastic ball 311 adopts the rubber material, and its embedded deformation spring that is equipped with, buffering elastic ball 311 has the deformation that increases buffer layer 31 and restores force the time, increases the effect of center 3 to the holding power of display module 2.

The implementation principle of the display structure of the embodiment is as follows: adhere reflectance coating 4 and light guide plate 42, then bond lamp strip 43 in lower frame 1 through heat-conducting adhesive, again with the stiff end joint of ventilative shell fragment 16 in fixed slot 12, after the equipment backlight unit, place backlight unit in mounting groove 13, make reflectance coating 4 and lower frame 1 bond, then place center 3 in fixed slot 12 and with lower frame 1 bonding fixed, center 3 plays to reduce backlight unit and deviate from and play the effect that reduces lamp strip 43 light leak by lower frame 1, bond cushion 31 in center 3, it can to install display module 2 on baffle 17, this embodiment has simple structure, the effect of the installation of being convenient for.

Example two

Referring to fig. 7, the present embodiment is different from the first embodiment in that the middle frame 3 and the lower frame 1 are fixed in different manners.

Referring to fig. 1 and 7, in the present embodiment, the middle frame 3 is disposed in the fixing groove 12, and a fixing elastic sheet 6 is disposed on a side of the middle frame 3 close to the light guide plate 42, the fixing elastic sheet 6 is an arc-shaped sheet and is correspondingly clamped between the inner sidewalls of the mounting groove 13 and the bending portion 41 (refer to fig. 3 for specific structure).

One end of the fixed elastic sheet 6 is bonded to one side of the middle frame 3 close to the light guide plate 42, specifically, one side of the fixed groove 12 far away from the opening 11 is provided with a holding groove 61 for holding one end of the fixed elastic sheet 6 bonded to the middle frame 3, one end of the fixed elastic sheet 6 close to the middle frame 3 is clamped to the holding groove 61, the holding groove 61 is communicated with the mounting groove 13, the other end of the fixed elastic sheet 6 extends towards the side where the light guide plate 42 (refer to the specific structure in figure 3) is located, the side wall of the mounting groove 13 is provided with a clamping groove 62 for clamping with one end of the fixed elastic sheet 6 far away from the middle frame 3, the fixed elastic sheet 6 is bent towards the bending part 41 (refer to the specific structure in figure 3), the fixed elastic sheet 6 is abutted to the bending part 41, when the middle frame 3 and the backlight module are combined, the middle frame 3 and the backlight module are placed together in the lower frame 1, until fixed shell fragment 6 keep away from the one end joint in joint inslot 62 of center 3, fixed shell fragment 6 is close to 3 one end joints in holding tank 61 of center, presses backlight unit by the printing opacity mouth, make reflective membrane 4 and mounting groove 13 tank bottom bond fixedly can.

And one side of the fixed elastic sheet 6, which is far away from the middle frame 3, is provided with tensioning rubber 63, and two sides of the tensioning rubber 63 are respectively connected to two ends of the fixed elastic sheet 6.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A display structure, characterized by: the backlight module comprises a lower frame (1) which is integrally formed by die casting and a backlight module which is arranged in the lower frame (1); lower frame (1) is cavity and confined framework, and it corresponds display module assembly (2) one side and is equipped with opening (11), lower frame (1) is the echelonment setting with the lateral wall that opening (11) are adjacent, and is close to the one deck ladder of opening (11) and be fixed slot (12), fixed slot (12) width is greater than the ladder width of keeping away from opening (11), be equipped with back font center (3) in lower frame (1), backlight unit is located one side that opening (11) were kept away from in fixed slot (12), fixed slot (12) are located in center (3), and center (3) extend to the backlight unit top by its four sides to the middle part, center (3) middle part formation area is less than the light-permeable opening of the area that backlight unit is close to the side of center (3).

2. A display structure according to claim 1, characterized in that: backlight unit includes reflectance coating (4), light guide plate (42) and lamp strip (43), stairstepping that lower frame (1) is located fixed slot (12) downside becomes mounting groove (13), mounting groove (13) tank bottom is located in reflectance coating (4), reflectance coating (4) top is located in light guide plate (42), mounting groove (13) wherein one side lateral wall is located in lamp strip (43) and the position that corresponds light guide plate (42), just the trilateral portion (41) of bending that forms in reflectance coating (4), portion (41) cladding of bending is in light guide plate (42) and be close to adjacent, relative three sides in lamp strip (43) one side.

3. A display structure according to claim 2, characterized in that: one side integrated into one piece that light guide plate (42) are close to lamp strip (43) has the setting element, the setting element is including connecting in light guide plate (42) connecting portion (422), connecting portion (422) set up reflective film (4) one side towards light guide plate (42) and extend, connecting portion (422) extend one end of light guide plate (42) and bend to form butt portion (423) of keeping away from light guide plate (42) one side in reflective film (4) to light guide plate (42) inboard, the tank bottom of mounting groove (13) is equipped with the constant head tank with butt portion (423) joint.

4. A display structure according to claim 2, characterized in that: be equipped with elastic layer (421) between light guide plate (42) and the portion of bending (41), it is equipped with location soft block (44) to bend the portion (41) and keep away from between one side of light guide plate (42) and mounting groove (13) lateral wall, be equipped with elastic component (441) in location soft block (44), the lateral wall that mounting groove (13) correspond elastic component (441) is equipped with deformation hole (14).

5. A display structure according to claim 3, characterized in that: lamp strip (43) include LED lamp (5), LED lamp (5) are evenly set up along lamp strip (43) length direction, connecting portion (422) are located between two adjacent LED lamps (5) and gapped with lamp strip (43), the constant head tank extends to lamp strip (43) and keeps away from one side of light guide plate (42).

6. A display structure according to claim 5, characterized in that: one side of the light guide plate (42) close to the light bar (43) is integrally formed with at least two positioning portions (424), the positioning portions (424) protrude out of the light guide plate (42), the light bar (43) further comprises an FPC (flexible printed circuit) light strip (51), the LED lamp (5) is provided with a plurality of positioning portions along the length direction of the FPC light strip (51), the positioning portions (424) are abutted to the FPC light strip (51), all the LED lamps (5) are located between the two positioning portions (424) which are farthest away from each other, and the side faces of the positioning portions (424) abutted to the FPC light strip (51) are arc-shaped faces.

7. A display structure according to claim 1, characterized in that: the side that lower frame (1) set up opening (11) extends to the lower frame (1) outside along its plane and has baffle (17) that are used for fixed display screen, there is the interval on the surface of baffle (17) and center (3) surface that is close to opening (11), one side that center (3) are close to opening (11) is equipped with cushion layer (31), cushion layer (31) are located lower frame (1), just be equipped with buffering elasticity ball (311) in cushion layer (31).

8. A display structure according to claim 2, characterized in that: the bottom of the mounting groove (13) is provided with a plurality of bonding grooves (131), the bottom of each bonding groove (131) is provided with a plurality of fixing adhesives, and the fixing adhesives are connected with the reflecting film (4) and the lower frame (1).

9. A display structure according to claim 2, characterized in that: the lateral wall that the inside wall of mounting groove (13) corresponds portion of bending (41) is equipped with semicircular ventilative shell fragment (16), the one end of ventilative shell fragment (16) is stiff end, the other end is expansion end (161), mounting groove (13) are equipped with fixed slot (12) that are used for the joint stiff end, the position that lower frame (1) lateral wall corresponds ventilative shell fragment (16) is equipped with the bleeder vent, and lower frame (1) in the position of bleeder vent is equipped with dust blocking sheet (15) that have elasticity and cover the bleeder vent, one side of dust blocking sheet (15) is fixed in lower frame (1), relative one side activity sets up to activity side (151), expansion end (161) of ventilative shell fragment (16) support and press in activity side (151) of dust blocking sheet (15).